Cutoff machine



Aug. 24, 194s.

Filed May 51, -1945 q.- il( ,n\

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Drive for the cut-H mechanism which gear train the horizontal shaft 11 coacts with the housing 16, 15, and the housing is rotated. This means that the shaft 11, in effect has no rotation, but only a revolution with the same side of the shaft 11 at all times toward the shaft 5I. The lobe or housing 15, 16, in its rotation withthesliaft'al,^has 4such relatively to thebearing 52.

, Rotation drive for the cutter disk Fixed against rotation as to the shaft 11 and 'rrnly'mounted thereon is a frame or bracket The shaft S as extending past the worm 9 has a flexible connection il (Figs. 3, 4) to a bevel gear 42 in a housing 43, Where, thru a bevel gear 44 and an upwardly extending flexible connec-n tion 45, there is transmission thru right angle connection at a housing 46 to rotate asleeve l1 into which is slidable splined shaft 43. The sleeve 41 provides a rotation drive or' actuater for the shaft :t8 while permitting relative reciprocation. On the shaft 4S is a'worm 49 in mesh with a worm wheel 50 'fixed on a shaft or mounting 5I in a bearing 52 having fixed therewith va pair of guides 53 slidable on fixed rods 54 mounted in a first frame member 55 upwardly carrying the housing 46 (Fig. 4). The frame member-55 at its lower portion has a pivotal mountingconnection 56 with an upright 51 from the deck of the truck 3. The upright 51 mounts' the housing 43.

The rods 54 remote fromtheframe 55, are fixed with a second frame member 58 providing adjusting means having an eye extension 59 adjacent a hand wheel 60 coasting with a threaded stern or shaft 6l extending thru the eye extension 59 and having therebelow a pivot mounting or connection 62 at an Aupright 63 from the floor of the truck 3. Operation 'of the handwheel 66 to rock the frames 55, 58, and therewith the bearing 52, is permitted by the flexible connection 45.

Rising from the frame 58 is an armiili having an offset or overhang portion 65 horizontallyextending toward the shaft 5I and terminally carrying a roller 66. A cam 61 (Figs. 3, 4,15) xedon the shaft 5| is thrust against the roller 66 by compression helical springs 68 on the rods 54 between the guides 53 and the frame 55. The cam 61 has a major extent lesser radialmagnitude portion 65) say of about 300C, a differentradial magnitude portion 16 from the longer radius terminus of the portion 69, of about 40 and an additional short radial magnitude portion 1l .connecting the portion 1l) with the short region of the portion 69, thereby completing the cam 61. The cam 61 is mounted on the shaft 5l, which is not the axial center ofthe cam arc portions The orbit for the cutter Fixed on the horizontal shaft 5I remote from the cam 61 is a gear 12 (Fig. 4) in mesh with an idler intermediate gear 13 to drive a gear 14 in lobe or arm of a housing E6 for these gears. The housing 16 swings about the horizontalzaxis of the shaft 5l in carrying the parallel shaft 11. The mesh relation of these gears is such that the gear 14 has 1 to l speed ratios with the gear 12. With the gear 'M fixed with additional shaft 11 rotatable in the housing i6, the shaft 11 and the lobe 15 swing about the shaft 5| as'an axis as a sort of planet timed for one rotationlof the gear 1d in the reverse direction as it travels once about the sun gear 12 of this planetary gearing in .truck 3. A

...means ll ,(Ffig. l) mounting electric motor 19 having vbelt drive or transmission connection 8l) 157 lto horizontalA shaft 8l carried by the frame 18 on the opposite side ,of the shaft 11. As protruding from the ,frame 1B away from the belt 80, there is ahousing 82 fixed with the frame 18 partially enclosing cutter or marker disk 83. The shaft 8| provides a support for the disk or tool 83 clamped thereon. The travel of the at-all-times approximately horizontally extending axis of the to'ol is ina'vertical plane from the strip stock 4. Win-dow portion l84 of the housing 82 leaves the disk 83 exposed. The formed glassy stock yas in transitto and past this marking or cutting device,`has in line with its travel ldirection an alignment maintaining means i or support 85 (Fig. 4) having an adjustable mounting 86 from upright means 31 rising from the oor of the The timed cut-01T rThe clockwise rotatable cam 81 in the relatively long interval from-the portion 'l0 allows for a `gradual extension of the springs 68, in acting on the shaft'l between the guides 53 and the rods 54. yIn this interval, it is to be 4noted that the roller 56 is gradually coming to a shorter radius portion of the cam 61 as to the shaft 5l. That is, thecam A61, as awayfromthe face portion 16 a'n-d'active at the face'portion 69, is not thrusting' the rollerl 66, but the cam is reducing its active face portion diameter from the shaft 5I yfor the shaft 5| to be moved more close tothe roller 66. vl\lotwithstanding'the mass of the? outboard mounting'for the diskY 83 and its rotation driving means, this travel of the guides 5,3 along the rods 54 in carryingV the'shaft 5|', is stabilized against vibration, even at a cycle per 4secon-d and faster, such as `toap'proach 10() R. P. M. rlghe long interval portion 69', has therefrom the relatively short portion v1| to locate the disk cutter 83 in position first to engage and) move slightly 'toward and peripherally into denite marking contact with the-stock, rod ortube. The succeeding se- 'quence is for the common transit travel with or in synchronism as to speed with the stock, or approximately therewith. This occurs because the interval portion 16 is of constant radius. As

thisk marking or cutting work is achieved, the

merging 'therefrom of the longer'cam'portion 69 allowslthe lsprings 66 to bring the marking disk 83 gradually to take its swing about the arc to thereafter again enter upon the starting position fora repetition of its cycletof operation. It is thus-'seen that the orbit or control for the rotary cutter of marker 83 as controlled by the'cam 61 is for the cam portion 1I to direct the cutter 83 into the desired depth of cutting or marking relation with the stock [while proceeding'lwith the stock, thus tolocalizethc region of the marking or cutting. `This depth of `marking or cutting is `continued for the succeedingportion 10 in the clockwise rotationv (Fig. 5). As the stock leaves the regionof the cutter: 83; the. camportion 69 retracts the cutter 83 for the repetition of the cycle of operation at a succeeding definitely predetermined distance from the previous marking or cutting of the strip stock.

The common drive 6 for the feeder chains 26, 30, is to establish a constant and uniform speed for the horizontal reach at the pitch diameter for the sprocket wheel |8. Coincidental therewith is the speed established by way of the shaft 8 as also driving the shaft 5| and the cam 61, to fix the timed relation of the frequency of appreach in uniform succession to the line of travel of the stock 4. There is thus maintained a synchronism or a predetermined inter-connecting means for establishing accurately definite lineal sections upon which the disk 83 acts.

The adjustments 35, 40 compensate for required gripping of the variation in stock handled. The handwheel 68 not only conforms in placement to the dimension of stock, but may be an adjusting means to take up for new disk 83, or wear, or pitting of the disk-83 in use. The general path orbit described by the disk 83 is in the region of a clockwise path 88 (Fig. 4). The shaft 11 is an offset axis for the frame 'H8 eccentric of the shaft 5|, with the frame 18 so controlled from the transmission thereto as to maintain the shaft 8| in a general horizontal direction at all times.

The rotating housing 16 (Fig. 3) carries a lug, thereby in its swing it is effective to act upon a switch 89 (Fig. 3) to energize a solenoid 90 (Fig. 1). The solenod 90 as thus energized acts to drop a. finger 9| in a region on the stock 4 as just beyond a marking or nicking thereof by the -disk 83. This knock or shock from the stroke of the 1inger 9| against the glass stock 4, as extending beyond the marking weakness, completes the severance therefrom of the beyond-the-marker portion of the glass as a prescribed length. The length of glass 4 as leaving the way 93 in much of the practice tends to break off of its own overhang Weight and fall upon receiving chute 94. Accordingly the nger 9| is a safeguard to cornplete severance initiated by the disk or marking tool 83.

It is to be noted in the embodiment herein that there is quite a mass of material mounted on the shaft 5| which carries the cutter 83 to describe the orbit 88. The gear 'l2 (Fig. 4) is keyed to the shaft 5|, which has the boss or hub portion of this gear 'l2 exposed in protruding thru the housing 16, as is also the case for the boss or hub of the gear 14 on the shaft Tl. Furthermore, with the lineal travel rate for the stock in the range per second, there is considerable momentum for this traveling mass as including the disk cutter 83. Under the invention herein, this mass approaches a constant or approximately uniform velocity in its closed circuit path or orbit 88. The functioning part of this orbit 88, as herein disclosed is glass contact region 89 of very minor lineal extent as to the orbit, but is of the duration of contact for the tool or cutter 83 with the work or glass 4.

What is claimed and it is desired to secure by Letters Patent is:

1. A cut-off machine for horizontally-continuously-traveling strip stock, comprising a marking tool, bracket means providing a support for the tool, a horizontal shaft, planetary gearing actuated by the shaft rotation, a housing for and rotated by the gearing, said housing including an arm, and an additional shaft protruding from the arm of the housing and connected to be aotuated from the gearing at a transmission rate to revolve the bracket means one-to-one relatively to the rotation of the housing and to hold an aproximately horizontal direction for the bracket means toward the tool in a vertical plane from the strip stock.

2. A cutoff machine for horizontally-continu ously-traveling strip stock, comprising a marking tool, bracket means providing a support for the tool, a horizontal shaft, planetary gearing actuated by the shaft rotation, a housing for and rotated by the gearing, said housing including an arm, an additional shaft protruding from the arm of the housing and connected to be actuated from the gearing at a transmission rate to revolve the bracket means one-to-one relatively to the rotation of the housing and to hold an approximately horizontal direction for the bracket means toward the tool in a vertical plane from the strip stock, a frame mounting the horizontal shaft, and means for vertically adjusting the frame and thereby vary the proximity of the tool to the strip stock.

3. A cut-off machine for horizontally-continuously-traveling strip stock, comprising a marking tool, bracket means providing a support for the tool, a horizontal shaft, planetary gearing actuated by the shaft rotation, a housing for and rotated by the gearing, said housing including an arm, an additional shaft protruding from the arm of the housing and .connected to be actuated from the gearing at a transmission rate to re- Volve the bracket means one-to-one relatively to the rotation of the housing and to hold an approximately horizontal direction for the bracket means toward the tool in a vertical plane from the strip stock, a frame mounting the horizontal shaft, a cam on the shaft and spaced from the housing, and an additional frame including a roller coacting with the cam to vary the movement of the tool in said plane.

FRANZ G. SCHWALBE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,220,201 Danner Mar. 27J 1917 1,242,478 Rosewarne Oct. 9, 1917 1,585,896 Danner May 25, 1926 1,647,352 Halstead Nov. 1, 1927 1,868,397 Salomon July 19, 1932 2,290,837 Stuckert July 21, 1942 2,306,721 Forter et al. Dec. 29, 1942 2,332,013 Rudert et a1, Oct. 19, 1943 

